Liquid crystal lens with large focal length tunability and low operating voltage
Abbreviated Journal Title
SPHERICAL ELECTRODE; Optics
We demonstrate a tunable focus liquid crystal (LC) lens by sandwiching a homogeneous LC layer between a planar electrode and a curved electrode. The curved electrode which is made of conductive polymer has parabolic shape with a large apex distance. Such design dramatically reduces the phase loss which leads to a short focal length (similar to 15 cm). By using a thin top glass substrate on the curved electrode side, the operating voltage of the lens cell for achieving the shortest focal length is reduced to similar to 23 V-rms. This LC lens has advantages in large focal length tunability, low operating voltage, and good mechanical stability. (C) 2007 Optical Society of America.
"Liquid crystal lens with large focal length tunability and low operating voltage" (2007). Faculty Bibliography 2000s. 7566.